Drill.



P. C. FDBRESTER.

DRILL.

(Application filed Mar. 8, lfl 99.|

v No. 623,404. Patentedluly 4, I899.

(No Model.)

BY g

A TTOBNE rs.

UNITED STAT S.

PATENT OFFICE.

PETER 'c. FORRESTER, oF'sPRINcr VALLEY, ILLINOIS.

DYRILL.

SPECIFICATION forming part of Letters; Patent No. 628,404, dated July 4, 1899.

Application filed March 3, 1 8 9 9.

T fl/Z/Z whom, it may concern:

Be it known that 1, PETER O. FoRREsTER, of Spring Valley, in the county of Bureau and State of Illinois, have invented a new and useful Improvement in Drills, of whichthe following is a full, clear, and exact description.

The object of my invention is to provide a drill especially adapted for use in connection with the rails of railway tracks and to so construct the drill and its support that it may be expeditiously and conveniently placed in position upon the rails of a track or disengaged from said rails.

The prime object of the invention, however, is to provide a means whereby the operator may be seated during the process of drilling and whereby the weight of said operator will serve to keep the drill up to its work.

Another'object of the invention is to so construct the drill and its support that the entire device may be folded up in a small space and readily carried upon a hand-car.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the improved drill, illustrating its application to a track, the rails of the track being in section. Fig.

, 2 is a horizontal section taken substantially on the line 2 2 of Fig. 1. Fig. 3 is a Vertical section taken substantially on the line 3 3 of Fig. 1, and Fig. 4 is a detail perspective View of it strut employed in connection with the dri l.

A represents a beam, which beam at one end is provided with'attached cheek-pieces 10, extending beyond the end. The cheekpieces are of greater width than the thickness of the beam, and said cheek-pieces are so attached to the beamthat the upper portions of the cheek-pieces extend beyond said beam. Each cheek-piece 10 is provided at its outer extremity with a' jaw 11, and the jaws of the cheek-pieces 10 are so shaped that when the cheek-pieces rest upon the tread of a rail B the jaws will conform to the outer side surface Of the tread portion of the rail and en- Serial No. 707,634. (No model.)

gage firmly with the web thereof, as shown in Fig. 1. Each cheek-piece near its inner end is provided with a series of longitudinallyarranged apertures 12.

A table 13 is held to slide upon the upper edges of the cheek-pieces 10, and said table serves as a support for the side bars of a drilling-machine C, which machine may be of any desired construction. As shown in the d rawings, however, the side bars 14 of the drillingmaohine are connected at the top by crossbars 15, and in the said cross-bars a shaft 16 is journaled, provided with oppositely-disposed cranks 17 at itsends and a bevel-gear 18, secured between its ends, the bevel-gear 18 being adapted to mesh with a corresponding gear 19, attached to a shaft20, that extends longitudinally of the upper portion of the frame of the said drilling-machine. The shaft 20 usually carries a sprocket-pinion 21, connected by a chain belt 22 with a pinion 23, securedupon a shaft 24, located at the bottom portion of the frame of the drilling-inachine, said shaft 24. being provided with a chuck 25, adapted to receive a drill 26.

When the table 13 is mounted upon the cheek-pieces 10 and the cheek-pieces are in engagement with a rail, the drill 26 will be horizontally below the said cheek-pieces and in position to engage with the web of the rail. When the jaws 11 of the cheek-pieces are in engagement with a rail, as shown in Fig. 1, the beam A may be securely held in engagement with the opposing rail of a track by means of an angle-bolt 27 ,carried by the beam, as shown in Figs. 1 and 2; but the said angle-bolt is not absolutely necessary and therefore may be dispensed with.

The drill 26' is adapted to be held in contact with the web of the rail by the weight of the operator using the drilling-machine, and to that end a lever 28 is pivotally mounted between opposing vertical side bars 14 of the,

frame of the drilling-machine and a seat 29 is provided at the free end portion of the said lever, as is also shown in Figs. 1 and 2. A strap 30 is secured upon the lever 28, preferably nearer its pivoted than its free end, and said strap is provided with a pin 31, the pin being adapted to enter a slot 32, made in the upper end of a strut or brace 33, said strut or brace being pivotally connected with the ICO cheek-pieces by means of a pin 34:, passed through the lower end of the strut and through opposing apertures 12 in the cheek-pieces. The nearer the strut 33 is carried toward the jaws of the cheek-pieces the farther outward the frame of the drilling-machine will be carried by the Weight of the person occupying the seat 29, and consequently a shorter drill 26 may be used than when the strut 33 is pivoted in apertures near the inner ends of the cheek-pieces.

When an operator occupies the seat 29, said operator may readily reach the crank 17, and the Weight of the person will keep the drill 26 constantly in engagement with the rail in which an opening is to be made. The device is exceedingly simple. It is durable and economic, and in the event the device or machine is in use and a train approaches the beam A or body of the device may be quickly disengaged from the rails of a track the moment the operator moves from the seat- 2 and draws the frame of the machine inwardly,

releasing the bolt 27 from the rail when said bolt is employed. The machine may be com pactly folded by simply removing the strut 33 from engagement with the pin 31 on the strap 30, permitting the lever 28 to drop downward to the beam A, the strut occupying a position in engagement with the beam between the cheek-pieces 10.

Having thus described my invention, I

claim as new and desire to secure by Letters ver with the support, the point of connection of the-link or strut with the lever being in front of its point of connection with the support,the said lever projecting from the drillframe above the support and adapted to sustain the weight of the operator, whereby the drill will be kept to its work by the weight of 1 the operator, as set forth.

2. A drill-frame, a support upon which the.

drill-frame has sliding movement, a lever above the support and having one end pivoted.

free end, and a link or strut having one end pivoted to the support and its other end to the lever in front of its pivotal connection with the support, substantially as described.

3. A support, a drilling-machine, the frame of which is mounted to slide on the support, a lever above the support and pivoted to the drilling machine frame, said lever being adapted to sustain the weight of the operator of the machine, and a strut having a detachable and pivotal connection with the lever at one end and an adjustable pivotal connection with the support atits other end, the point of connection of the strut with the lever being in front of its point of connection with the support, substantially as described.

4. The combination, with a support, having means for clamping engagement with a rail, and adrilling-machine the frame whereof is mounted to slide upon the said support, of a lever pivoted at one end to the said frame, the said lever being provided with a seat,'a strut having detachable and pivotal engagement with the lever between the ends thereof and pivotal and adjustable connection with the support, the said lever being so placed that when subjected to the action of a weight the frame of the drill will be carried outward, causing the drill carried bythe frame to be constantly in engagement with the article to be drilled, as described.

- PETER O. FORRESTER.

Witnesses:

R. B. OUMMING, CHAS. P. MoDoNAL'n. 

